If at any time during the treatment there is a drawback the affected person or an attendant can instantly cease the decompression with an simply accessible security swap. ^ a b B. Eder, “British Blues”, in V. Bogdanov, C. Woodstra, S. T. Erlewine, eds, All Music Information to the Blues: The Definitive Information to the Blues (Milwaukee, WI: Backbeat Books, 3rd edn., 2003), ISBN zero-87930-736-6 , p. seven-hundred.